Aromaticity‐Switchable Tetraoxa[8]circulenes as Anode Materials for Sodium‐Ion Batteries
Despite being a key concept in chemistry, aromaticity and the switching thereof have only seldom been used in charge storage devices. Herein, this work explores how aromaticity switching in a tetraoxa[8]circulene derivative, named N‐TOC, can be used in sodium‐ion batteries and assesses the switching mechanism through computational approaches. N‐TOC delivers exceptional cycling stability at 50 and 100 mA g −1 over 500 cycles with a capacity retention of 91% and 89%. Supported by DFT calculations, this work investigates changes in aromatic motifs within N‐TOC through changes in redox states upon charge storage, thus presenting a promising strategy for the design of organic electrodes in Na‐ion batteries.
Authors
- Ali Coşkun (ORCID: https://orcid.org/0000-0002-4760-1546)
- Timur Ashirov (ORCID: https://orcid.org/0000-0002-7832-5716)
- Marco Lattuada (ORCID: https://orcid.org/0000-0001-7058-9509)
- Dominika Baster (ORCID: https://orcid.org/0000-0002-6732-0565)
- Mario El Kazzi (ORCID: https://orcid.org/0000-0003-2975-0481)
- Patrick W. Fritz (ORCID: https://orcid.org/0000-0003-4609-6573)
- Miroslava Nedyalkova (ORCID: https://orcid.org/0000-0003-0793-3340)
- Mingliang Liu (ORCID: https://orcid.org/0000-0001-9703-2911)
Institutions
- University of Fribourg (CH)
- Paul Scherrer Institute (CH)
Publication Details
- Journal
- ChemistryEurope
- Published
- 2025-10-02
- DOI
- https://doi.org/10.1002/ceur.202500149
- Primary Topic
- Synthesis and Properties of Aromatic Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Université de Fribourg